package com.novel.base.utils;

import lombok.Getter;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.stereotype.Component;

/**
 * spring bean 工具类
 *
 * @author ZC
 */
@Slf4j
@Component
public class SpringContextUtil {

    @Getter
    private static ApplicationContext applicationContext;

    /**
     * 设置上下文
     */
    public static void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
        log.info(" >>> SpringContextUtil have completed >>> ");
        SpringContextUtil.applicationContext = applicationContext;
    }

    /**
     * 通过name获取 Bean.
     */
    public static Object getBean(String name) {
        return getApplicationContext().getBean(name);
    }

    /**
     * 通过class获取Bean.
     */
    public static <T> T getBean(Class<T> clazz) {
        return getApplicationContext().getBean(clazz);
    }

    /**
     * 通过name,以及Clazz返回指定的Bean
     */
    public static <T> T getBean(String name, Class<T> clazz) {
        return getApplicationContext().getBean(name, clazz);
    }

}
